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A material model for prediction of fatigue damage and degradation of CFRP materials

 
: Hohe, J.; Gall, M.; Gauch, H.; Fliegener, S.; Hamid, Z.M.B.A.

:

Herrmann, A.S. ; Deutsche Gesellschaft für Materialkunde -DGM-:
21st Symposium on Composites 2017 : Selected, peer reviewed papers from the 21st Symposium on Composites, July 5-7, Bremen, Germany
Dürnten: Trans Tech Publications, 2017 (Key engineering materials 742)
ISBN: 978-3-0357-1198-1 (Print)
ISBN: 978-3-0357-2198-0 (CD-ROM)
ISBN: 978-3-0357-3198-9
S.740-744
Symposium on Composites <21, 2017, Bremen>
Bundesministerium für Wirtschaft und Technologie BMWi
03ET6013F; HyMod
Simulation methods for the thermomechanical assessment and lifetime prediction of cryogenic hydrogen pressure vessels for automotive application
Englisch
Konferenzbeitrag
Fraunhofer IWM ()

Abstract
Objective of the present study is the definition of a material model accounting for fatigue damage and degradation. The model is formulated as a brittle damage model in the otherwise linear elastic framework. A stress driven damage evolution equation is derived from microplasticity considerations. The model is implemented as a user-defined material model into a commercial finite element program. In a comparison with experimental data in the low cycle fatigue regime, a good agreement with the numerical prediction is obtained.

: http://publica.fraunhofer.de/dokumente/N-464648.html